Control mechanism



Au 12, 1930. F. A. TRINKLE 2,

' CONTROL IEGHANISI ori im Filed Dec. 20, 1924 2 Sheets-Sheet 1 fi dend' 752M146 2 Sheets-Sheet 2 Aug. 12, 1930. F. A. TRINKLE CONTROL IECHANISI Original Filed Dec. 20. 1924 W 3w V km E W Q k l m oili inalsp ncatitafled nee ifite eo; leujseiidl no, 757,2281 niv ideqana itnn abpndtfitn 1641 v teemin 12; 1936, 1

LF AN' SM August 31} ms. Sen no 393.355: I

This invention relates to improvements in V 'contr01mechanism, and more particularly to f control meehanism'joffa type highly desirable determined am0unt;-; a i ha'sbeen desi ed;-

for regulatingthe fuel. supply and veontiola ling the heating means; of steam :pjower 1s to prjevide' co'ntrellin plants, although the invention has man 'a nd variednses and functions as will be apparent; to oneskilled in th'e art'.- Theptesentinve ni tion isadivisibn OfthestrnCture shown and described in "my' copending application; for

patent for pev'ver plant, Serial N0757226 I I L n A 1' v tio n isteprovidea eenttolmechanisni'foha 5 1 steam "plantntilizing pl ilnalyfand secondaifyf heating meanSQWflhich mechanism is designed fer eutting off the primaryfheati-ng'n eans F35 A "when{the}pressureIQMhesya predetermined, IVa'1ue,'.and feninaintaining' theipressure'f'at v this value accelerating"er'retarding jthe "secondary means accerdanee withvaf-i Y tions in thepressure'. "1

filedDecemberQO,1924; a 1 i In thepast, many; and varied devices have been developedfor the control of steam in similar fluid and for 1 controlling. the "means for producing the working fluid; but these formerly known devices, have, in; most; in- -stance's,*prov.en obje'ctionable "in that they were not sufiiciently" positive 5 in their action, were-net as completely antornaticasjis desirable, and" werefnotlarranged to ifun'cftien immediately upon minute variatibnlsin steam pressure to elther ncrease-the pressure 0; prevent the same from lncreaslng beyondaip 'e,

The present invention a to overcome the above noted defects anfobjections in the provisi en [of aebeiler drlthg] like having-both priinary and fse'condafy heating means, and equipped with' lcdn i' f V -ineehanisrn I for automatically 3 stopping-.1101 j starting said heating means iiIldivi'dl'ljally or i simultaneously in aceordance "with variations 1n pressurelnthe bolle'rif The invention a lse seeks t0 ippi'ov i d e icontrol mechanismfo -"apdWer lantnti lizing 5 both primary and secondary eatingmeans,

which inechanisni j is designed for! stopping the primary heating lnea'ns}infresponse t6 an "increase 1 in steam pressure; andier mmra ing 0r-1-acce1e1 ating-the seeendai'y "heating means in accordance with rrelativ'ely slight 'fecting'the"primaiyfheatingmeansJ g Anetheriqbject of the pfesentinvention is to provide control mechanism for'f a steamthereto, which mechanismis designed: for} done in steam pressure.

" "taining the fiu'id pressure in the 'plantat suh 1 stantially a predetermined value.

v' parent fromtheffellotvi I "The inventioniincliidest heseandether'fe a- 1 turesfefi ednsti'iietion and bmbi ecions of 7 parts hereinafter des'cti'bedand shown inja' a tion i id;pert lev t bi Vi w ii u fiu h in F g e ediflec nt/ Y, ha

*ariati'ons .in thesteafn re sure withent alt-j makin breaking theeircni't thr oughi Sam 3 electrical means infaeo'rdanee with fvaria v "A' further Object of the present iinventien I d means fora heating '5;

plantoflthe"typejdeseiibedherein whiehl i means ar'esimple and positive in their Ofieifation for automatically andjeifectiVeIy main- A stillfurther ehjectief the present'invn chaiacteristics,'.and' advantages, of means e bpdying the present, tinventien haie been (above pointedrout; ethersywill *beeorfiefapprefe red form in the drawil gs, as more par tien lfa i'ly "indieate d"by the claims i fOnfthe iirawing'sd l bc yin n pr ipn "i9? 5; Figure 2 ifs-an enlarged,fragmentary, part sectional part elevational View" of a 'Ine'ehan i h wn t the i trf m r g of Fig e F u i 351$! n en g r gme t r yspartgnr'eA 1s (an. enlarged franlenta fy pai t ing plant eqnipped'with electrical means fer,

lgure I "5 a s'chematiediagram o ,'iel etri aifpircuit which may s cces fullybe fzused'with i and; incOrpQratedinthe: presentdm As shown in the drawings:

' In the structure arbitrarily selected to illustrate an embodiment of the present invention, there is shown a boiler 1 for producing steam underpressure, this boiler being clearly shown and described in my above referred to copending application: Disposed beneath the boiler is a burner 2 of the type designed for burning atomized fuel and equipped with a burner mechanism3 "which is augply to theprimary heating means of the boil er, the mechanism 3 affording a fuel supply to the secondary heating means of the boiler. Automatically controlled mechanism 6,, in this instance, shown at the top of the boiler 1 governs andcontrols the mechanism 3 for Secondary heating means, themechanism f5,' for the rimary heating means, and the motor 7 (Figure which operates the blowl es l pply means 5. a

*fhe fueljsupply mea'm The primary fuel supply means, desig- :nated by numeral 5 in higure 1, in this inne stanee ancqrpnratesabase plate 9 which is unted in any desired location relative to the other elements embodied in the present ,invention, and upon which is mounted a solejnoid 10 provided with the customar negative and positive binding posts 11 an 12, respectively; "Al'so mounted on the base plate 9. isa housing 13 provided with an upwardly extendingarm 14. A link 15 connectedat one end, asat 16, to the solenoid plunger 17, is pivoted, as at 18, to the arm 14 and connscted at its other end, as at19, to a rod 20, reciprocal in the housing13. The opposite or lower endof the rod is suitably secured to shearing member 21 which is rigidly se- 1 cured toa diaphragm 22 clamped i J5 members 21 and 24 and thereby hold the cenmented by a blower 4. Adjacent the blower and burner mechanism is a solenoid actuated control device 5 f or controlling the fuel sup-Q etween, the housing 13 and the base plate 9 and dis- 1 spring 28 disposed between the aforesaid rounded head and an integral shoulder within the-housing 23 urgesthe valve upwardly against the diaphragm and away frqln the valve seams to establish communication between an interior chamber 30 in the housing '23 and an intake pipe 31 connected to the housing, in any desired manner, or as shown bybush1ng31. -The opposite end of the intake pipe 31'communicates with any suitable fuel supply source, such as a gasolene tankv for example; When the valve 27 is opened, thegasolene will pass through the pipe 31 into the chamber 30, ,exitthrough a pipe 32 also in communication With'thechamber 30,

and enter the burner 22, (Figure3) through the nozzle 33jwhere the gasolene is ignited by sparks from opposed plugs 34.

When the, solenoid 10 is energized, the

plunger 17 is pulled downwardly thereby elevating the rod 20 against the action of the spring 25, and raising the diaphragm 22to permit the spring 28 to openthevalve 27 and admit gasolene to the pipe 32. When the solenoid is deenergizedflthe spring 25 forces the bearing member 21 downwardly ushi the diaphragm against the rounded sad 0 the Valve 27 to thereby close the lat- ,ter and cut off the fuel supplyfrom the pipe 32.

, l eaecondary f eel supply and heating means As seen clearly in Figure 3, the structure generally designated by reference numeral -3 in-Figure 1, comprises a cylinder 35 projecting Into the i'nteriorof the burner 2, the gasolenenozzle 33 terminating just inside the'cylinder 35, and the sparking means 34 bein disposed in such a position that vthe gaso enefwillbei ited within the cylinder 7 Elbwn by the blower 4 into the burner 2, to thereby provide primary heating means for the boiler 1 by the aid of which steam under adequate, pressure may be quickly 1 roduced. Disposed beneath the primary eating means are theisecondary eating means which include a valve 1 housmg 36 containing a hand valve for controlling the supply of any desirable liquid fuel through an intake 37 from any desirable source. The .-fuel passes through the valve in the housing36 into a nozzle 38 which is disposed within the chamber 39 in a casting pipe 42 is threaded intothecasing to comtan The prsswe responsive mm "seen that, ,opipe 1 ieviously referredfto 3 in connection wtih Figure,11;; has attaoh'edj I to the uppe pend thereof a; 1'43, tdwhich' here 44 and 45', respectively; [Qommunicatin With-the upper outlet of member l i is pipe 4 6 vvhichis connected to any si itablei. type of ater regulator, (not ShQWn) -1f0rjreg f ulatingfi the supply of iva'ter tothejboiler in] accordance weenie steam temperature} ,At iitsf' outerv portion thelTi member 4A is el0ngated, the passage therein enlarged,*and-the end closed bya s'uitable cap 47 infiwhi ch a -Yalvelst is t readed- The rel estefi is manually operated by ayhandlej LQ to open her closea valve 5OLQIi the injner endgof the lifslte'fii td Qi r li hQ dmiS i IiQf s e i liro .th -p tg q i by essfil. g g n I heT memberb4c5, v communicatesivith thepipe52 which is con- 1 mu i e e w th th hamb r: 139? s per Ll' t em w d P e t mi ith eliqu z fueladmitted by the nozzle 38 so thatthe' fuel "w l be h ugh y et iie e orl efQ e i ija'ss'es through the nozzle l4l where it fig nited either by. the sp jrk-plugsgi for by the flame 1 produced 1 prnnar is se cured at the oppositeend there'oifjT ymem The upper passage-of nected to any suitablefsteamf pressure gage 53. The inner end of this T- member 4 5;is

" 6 9., adjacent a bracket 'iOto, which the lever 84s iliv tei, i 1 7 The pp Po e ti on' of the lever-68 is bifurcated to embrace' v astud 72mounted onanearintegral'witha" '73grotatable aboutashaft--74 provided on Janend thereof with a fixeddisk75having r a ecess zdthel ein ',An a'rcfuat'e contactii'fi is, pivoted to the disk 73 as, at :7 8, "and pos-' I connected 'to a fiange54j the/inner side-of which is cove1 ed bya fdiaphragm 55 held in, position the flangeh t and the flangedmargin of a housing 56. Wit-hinthehohsingfifi V is a bearing member 5711in abutment with the A l diaphragm 55, which bearingtinember is -rig idly connected to a reeiprocatory rod 58 s1id-- able through an adjustingplug'59 inthe opj .posite end of the housing 56. A second bear-o ingmembe i 60 loosely engaged around the,

,rod 58 is maintained inabu'tment with the y maintained in position ethe hoi'isin'g 62 and I; an opposed housing 64.; Thedia-phra'gm" 63.

ofa valve 66 which, controls the admission}; 0f steam from the bypass \51; into (the :pipe j p1ug59 by a coiled spring r62, into abutm with 1 the diaphragm 6,

hes an arcuatecenter portionienjd the housing 62 is recessedg accordingly. the op l posite side thereof, thea 'cuate, portion ,of 1 t the diaphragm is abuttedbya rounded headfi 1 .42 leading to the secondary heatingim eans The'valve 66 is urgedinto open positionby N ha led prin 67seated in a suitablejrecess 1 in theihousingfit; n V

Assuming that the if the valve 66 is opem through thepipe-42 I of steam The rod 58 pro ects into a second v n I g ,ilf-lpehry of-ithe diskQAasecond "contact I a v valve O fibiinjst m willpass from the pipe 8 through the passage in the T member 441 into the bypass 5'1,-9 ,I;ldff

Yei ire-t inqr ses above pi t de erm ne ame i t therd aphregm 55 w ll or ed to; l

t e s httlierebyi sh g he r i 8 again t he a t on fith staring 61 cau ing th c e' the r g t to; e te tew 66' egai tthee espr ng 67 nd out off the a miss on r J th h t e bypass l lt elpip t a a a it "A in p epor om the nqr asedtressu e. V Now with reference to Figure-shit will be tion of ate-t ereby re d ;eqtionho s ende y' heet e ameen bv i y, if eteem'pre n. e slum? a QPQ Q'tQthQ- fE'bYTthQ: Brin "Prmtttmethesp ng 67 teaop n" h eye 6 6, and; edm tmore te fromrth i theiP P ;fi ov eby s eel erete lle ction Q the e ond ry ch at ngmeans {I h team pr e b' fl mei itv x essivei he valve "66 i 1 tire y ut o f. het eem' rom h P p 42 a d cau t e e i ondarygheati ng;meanstol eventuall cease :function-ing, but the heating means will be immediately started again When'the pressure her n drops the proper amonntaswill later appeal;

primaryh i ting means as well as providing ignition'for lrboth primary 1 and seeonfdaryv heating means are Q also brought-into operation; by the movement l f $09 158; in EQ PQD Q t v ariations 20f steam? f -.pressure in the boiler 1. Thesemeans include ioo {sesses suifici entjnherent resiliency sothat the I tovvtrdslithe disk 75. The free end ofwthe contact '17 equipped 'withia roller membei free end thereofisat all times urged inwardly o positionedjso es toi ride around the pet membejr 8Q is also; secured to the: disk 73 and QQI ItaGtE-meinBErs#Timd 80, respectively; ii

taetiipqili si 81. ,and- 82 cionnectedfto; 'permit I t cur ent of thesame polarityto flow through hindgingposts 83end 851;:ywhenthepressu rej vthatth meeemo zesbathe right,

seen in Figure 4; will'be rotatednliao elockwisaand the one 79 forcedout' of the,

-76 thereby pushing contact point 82 outwardly beyond contact point :8 1 tobreak the circuit through binding posts 83fand 84.

With reference now to Figure 5, it will be seen that a switch '85is provided-adapted to through ammeter 89 to thepositive side of a source ofelectricale'nergy 90. The negative side of the current source90 is connected through' a conductor 91* to the binding post on the disk 73 thence'through conductor 92 to the negative side of the blower motor 7.

" amer-1' pressure drops slightly the valve 68 will open a trifle and permit more steam to enter the secondary heating means to accelerate the same; If the pressure drops materiall the rod 58 will be moved to the left sufiiciently to again close the contacts 81 and 82 on the disk 73 and start the primary heating means.

-.If so desired, if the secondary heati means have started to function, the SW1 arm 85 maybe moved off button 87 to the right as seen in Figure 5 and the steampressure kept up through the secondary heating means alone. e s

It will'be apparent'that steam pressure maybe kept up at the desired amount with The positive side of tbe'blower motor 7 is themeans above described, entirely automateonnected by conductor 93 to button 86. The button 87 is connected througha'conductor 94 to suitable spark coils 95 in circuit with spark plugs 34, and also to the positive side connected.

of the solenoid 10. Thenegative side of the spark coils 95 and the negative side of the BolenoidlO are connected by conductors 96 and 97, respectively, to the binding post 83 on'the disk 73, thereby closing the circuit through all of the elements when the contact points 81 and 82 onthe disk 73 are" The operation is as follows: I

: Assuming that it is desired to start the boiler from rest or zero steam pressure,the

Mswitch 85 is placed in the position shown w ful -in Figure 5 so that it bridges both contacts 86 and 87 ,thereby energizing the spark plugs 34: and solenoid and causing the blower motor to operate, the contact points 81 and f 82 ondisk 73 being connected since there is no pressure in theboiler, the energization of steam has been the solenoid 10 will cause gasolene' to be ad mitted to the primary heating means through the valve'27 (Figure 2) which gasolene will be ignited by the s ark plugs 34. As soon as eveloped by the heating means, a'portion of it will pass through the pipe 8, enter the bypass 51,-and pass therefrom through the pipe 42, to the secondary heating means, (thevalve 66 being open since 1 there is no pressure in theboiler); When the steam enters the secondary heating means, it will atomize the fuel entering throughthe pipe 37 (Figure 1') and force,

thisfuelinto the burnerQ, to be ignited by the fire already started therein-by the primar-y heating means. @As' i the rod58 (Figure 4) will'move tothe right n as the steam pressure hasreached. a pred rm'ined value,

and separate contact points 81 and 82 on the .disk 7 8, thereby breaking the circuit throu h the solenoid 10, and spark plugs 34, totally rstoppi-ng the primary heating means. e switch arm 85 is manually'movedofi button i 8.8 to open the blower motor7 circuit. If l i the pressure further increases th'evalve 66 i will close a trifle further and retard the ac tion of-the secondary heating means. If the tosta'rt and stop the said' primary heating ically, the means requiring little or no attention,

From the foregoin it is apparent that I have provided 'contro mechanism which automatically maintains steam pressure in a power plant or the like, by starting,stopping,

struction, eflicient and positive in operation,

requires a minimum of attention, is verydur- I able, and maybe economically manufactured.

I'am aware that many changes'may be made and numerous details of construction may be varied through a-wide range without departing from the principles of this invention and I, therefore,do not purpose limiting the patent granted hereon otherwise than necessitated by the prior art.

I claim as my invention: y

p .1. In combination, a boiler, primary and secondary heating means therefor, means responsive to the steam pressure in the boiler to admit steam to the said secondary means to accelerate the said secondary heating means, and means responsive to a redetermined increase in the pressure of t e steam in the boiler to stop the said prima heating' means and to decrease the flow o steam to the said secondary heating means and thereby retard the last mentioned means.

2. In combination, a boiler, primary and secondary heating' means therefor, blower meansjarranged to atomize fuel supplied to the saidheating means, means responsive to the steam pressure in the boiler to stop the said primary heating means, and means ar ranged to atomize fuel supplied to the said secondary heating means independently of the blower, the said means being res nsive to the pressure of the steam in the ho er.

I 8; In combination, aboiler, primary and secondaryheating means therefor, blower means arranged to atomize fuel supplied to the said'primar'y heating means, means responsive to the steam pressure in the boiler means, and means responsivefto; theisteam pressure in the boilerqto control the flow of steam therefromto the said secondaryheat ing means and thereby accelerate or-retard the said secondaryheating meansi j v 4. In combination, a boiler, primaryand secondary heating'means therefor, means re f sponsive to the steam pressurefinthe boiler to start and stopthe saidprimary heating means, blower means arranged tofatolnize fuel supplied to the said primary cheating 1,

7 means, conduit means connectingthemsaid.

secondary; heating means to the steam-space of the boiler, whereby steam from 'theboiler can atomizefuelzsupplie'd to the said second-:

. ary means, and diiferential'valve meansin operative association with the said secondary means, whereby the How of steamlto the said last named means ji's'red'uced as: thesteam pressure increaseg-fand increased asthe steami iljp f 'pressuredecreases;

In testlmony whereof hate hereuntosnb i" I r as lllinois." M a a FREDERICK A. T NKLE; 

